Clownfish
Why are clowns scary? If all clownfish are born male, how can they reproduce? How do clownfish survive living inside a sea anemone, and what does the anemone get out the deal? Come listen and learn from the Species podcast post-Halloween special.
Bibliography: https://docs.google.com/document/d/1kluzIMr4qZdQkI44n6QM7NJHhV6yxA7SjbwcDHsRFX0/edit?usp=sharing